Yui is having trouble fitting in her new high school and decides to join the light music club.

Yui wants a guitar that's too expensive, so the band girls get part-time jobs to save up for the guitar... but Yui might actually get it through a twist of fate.

It’s time to take midterm exams, but Yui is so busy practicing guitar that she ends up failing. She must pass the retest or the band must breakup.

Mio is inspired by finding a tape from the previous club's performance, and gets the band together to practice over the summer for an upcoming school festival.

Three days left 'til the music festival, and the girls are still not officially recognized as a club. Ritsu blackmails a previous club member to be their advisor.

The band performs at the school festival. Mio trips and exposes her underwear to the entire audience. She ends up getting a fan club but is scarred by the embarrassment.